英语 it的用法
it的用法
it可用作人称代词、指示代词、先行词及引导词等。
1．人称代词it，是第三人称单数中性，代表前文已提到过的一件事物。如：
1）That vase is valuable. It’s more than 200 years old. 那个花瓶很珍贵，它有200多年的历史。
2）I love swimming. It keeps me fit. 我喜欢游泳，它能使我保持健康。
当说话者不清楚或无必要知道说话对象的性别时，也可用it来表示。如：
3）It’s a lovely baby. Is it a boy or a girl? 宝宝真可爱，是男孩还是女孩？
it可用来指代团体。如：
4）The committee has met and it has rejected the proposal. 委员会已开过会，拒绝了这项建议。
it用以代替指示代词this, that.如：
5）--- What’s this? --- It’s a pen. —这是什么？—是一支钢笔。
6）--- Whose book is that? --- It’s Mike’s.—那是谁的书？—是迈克的。2．指示代词it，常用以指人。如：
7）Go and see who it is. 去看看是谁。
8）--- Who is making such a noise? —是谁发出这样的吵闹声？
--- It must be the children. —一定是孩子们。
3．虚义it无指代性，常用作没有具体意义的主语，出现于表示天气、气候、温度、时间、地点、距离等意义的句子中。如：
9）It is half past three now. 现在是三点半钟。
10）It is six miles to the nearest hospital from here. 这里离最近的医院也有六英里。
11）It was very cold; it snowed and grew dark. 天气很冷；天下着雪，渐渐地变黑了。
it也常用来表示一般的笼统的情况。如：
12）It’s awful—I’ve got so much work I don’t know where to start. 糟透了——我有这么多工作要做我不知从何开始。
13）How is it going with you? 你近况如何？
14）Take it easy. 不要紧张。
it也常用于下列结构：
15）It looks as if the college is very small. 看起来这个学院很小。
16）It seems as though our plan will be perfect. 似乎我们的计划很完善。
17）It’s my turn. 该轮到我了。
it也常用于某些习惯用语中作宾语，各该习惯用语有具体意义，但it并无具体意义。如：
cab it 乘车 catch it 受责，受罚 come it 尽自己分内 come it strong 做得过分 walk i t 步行
make it 办成 take it out of somebody 拿某人出气
4．先行词it.
it充当形式主语或形式宾语，本身无意义，只起一种先行引导的作用，先行词不重读。后面的真正主语或真正宾语通常是不定式结构、-ing分词结构或名词性从句。
（1）用作形式主语
18）It is difficult to translate this article. 翻译这篇文章很难。
19）It is getting harder every day for a lazy man to get a living. 懒汉谋生是日益困难
了。
20）What time would it be most convenient for me to call again?什么时候我再给你打电话最合适？
21）It is no use going there so early. 这么早去那里没有用。
22）It has been a great honour your coming to visit me. 你的来访是我很大的荣幸。
23）It is strange that he did not come at all. 真奇怪，他竟还没来。
24）It doesn’t matter what you do.什么都没关系。
在上述诸例中，后置的真正主语可以取代先行it的位置，而出现于句首。
To translate this article is difficult.
Going there so early is no use.
That he did not come at all is strange.
上述结构远不如用先行it结构普通。此外，也并非所有先行it结构都可作上述转换。如：
25）It seems that John is not coming after all. 似乎约翰终竟不来。
26）It happened that John was the only witness. 碰巧约翰是唯一的证人。
上述两例只能转换为：
John doesn’t seem to be coming after all.
John happened to be the only witness.
（2）用作形式宾语
27）I found it difficult to explain to him what happened. 我觉得向他解释清发生了什么事很困难。
28）He thought it no use going over the subject again. 他认为再讨论这个问题没有用了。 29）They kept it quiet that he was dead. 他们对他的死保密。
30）We must make it clear to the public that something should be done to stop polluti on.
我们必须使公众明白应该采取措施制止污染。
5．分裂句引导词it.
分裂句是以it为引导词的强调句型。它的结构形式是：It+be的一定形式+中心成分+that-/who-从句。如：
31）It was Jane that/who called this morning. 是珍妮今天上午打来电话。
32）It was a parcel that she brought him. 她带给他的是一个包裹。
分裂句是由普通陈述句转换而来的。通过这种结构可以强调除谓语动词以外的大多数句子成分。如： 33）John gave Mary a handbag at Christmas. 约翰在圣诞节给了玛丽一个提包。
根据上下文和语义意图，说话人可以通过分裂句分别强调主语、间接宾语、直接宾语、状语，使之成为信息中心。
34）It was John that/who gave Mary a handbag at Christmas. 是约翰在圣诞节给了玛丽一个提包。
35）It was Mary that John gave a handbag (to) at Christmas. 约翰在圣诞节是给玛丽提包的。
36）It was a handbag that John gave Mary at Christmas. 约翰在圣诞节给玛丽的是一个提包。
37）It was at Christmas that John gave Mary a handbag. 是在圣诞节约翰给了玛丽一个提包。
分裂句的时态一般应一致，即主句与从句的时态应皆用现在时，或皆用过去时，或皆用将来时。如： 38）It is not I who am angry. 发怒的不是我。
39）It was my two sisters who knew her best. 是我的两个姐妹最了解她。
40）It will not be you who will have to take the blame for this. 对此须受责难的将不是你。
有时分裂句的谓语动词还可以采取复杂形式。如：
41）It may have been at Christmas that John gave Mary a handbag. 可能是在圣诞节约翰给玛丽一个提包。
42）It might have been John who gave Mary a handbag. 很可能是约翰给了玛丽一个提包。
分裂句可以强调多种多样的状语成分。如：
43）It was when she was about to go to bed that the telephone rang. 是在她即将上床睡觉时电话铃响了。
44）It was because I wanted to buy a dictionary that I went to town yesterday. 我昨天是由于想买一本词典而进城的。
45）It was not until his father came back that Tom went to bed yesterday. 昨天汤姆是直到他父亲回来才上床睡觉的。（注意句中not的位置）
主语补语通常不可以用作分裂句的中心成分，如在规范英语中通常不说：
It is beautiful that she is.
It is chairman of the Committee that he is.
但是宾语补语是可以这样用的。如：
46）It is the chairman of the committee that they elected him. 他们选他是作委员会主席。
47）It is green that they have painted the wall. 他们把墙壁漆的是绿色。
注：（1）当强调的中心成分为主语，指人时可用连词that或who，如上述例（31）、（34）、（3 8），强调其余的成分时，连词一律用that。
（2）分裂句中的that与who在非正式文体中可以省略，如：
48）It was the President himself spoke to me. 是总统亲自和我谈了话。（省去从句主语w ho）
49）It was the dog I gave the water to. 我是给那条狗水的。（省去从句的宾语that）
50）It was yesterday I first noticed it. 我是昨天开始注意到的。（省去从句连词that）有时还可省去句首的it is，如：
51）A good, honest trade you are learning, Sir Peter! 彼得爵士，你学得是一种很好而诚实的一行啊！
（3）分裂句中的被强调部分有时可放在句首，如：
52）Now was it that his life was done, and the fate which he could not escape was upo n him.
就在这时，他的生命完结了，他所逃不脱的命运降临了。
53）When was it that he arrived at the village? 是何时他到达了这个村子？
54）Why was it that he was late for school? 他是为什么上学迟到的？
1．分裂句引导词it与先行词it的区别：比较：
55）It is surprising that Mary should have won the first place. 玛丽本应获得第一名，真令人吃惊！（先行词it）
56）It is Mary that has won the first place. 是玛丽获得了第一名。（分裂句引导词it）
2．虚义it与分裂句引导词it的区别。比较：
57）It was three o’clock in the morning when his father came back.（虚义it指时间）他父亲回来时是凌晨3点。
58）It was at three o’clock in the morning that his father came back. （分裂句引导词it）他父亲是在凌晨3点回来的。
3．分裂句中that/who- 从句与that/who引导的定语从句之区别。比较：
59）It is money that is most needed.（分裂句中的that-从句）最需要的是钱。
60）This is the money that is most needed.（that引导定语从句）这就是最需要的钱。
61）It is Mary who has broken the glass.. （分裂句中的who-从句）是玛丽打破了玻璃杯。62）Mary is the girl who has won the first place.（who引导定语从句）玛丽是获得第一名的姑娘。
区别方法：如将句型It is/was… that结构去掉，而句子能还原成普通陈述句，则该句是分裂句，否则不是。如（56）例去掉It is …that则变成： Mary has won the first place. 玛丽获得了第一名。（58）例变成：His father came back at three o’clock in the morning. 他父亲在凌晨3点回来。（59）例变成：Money is most needed. 钱是最需要的。
（61）例变成：Mary has broken the glass. 玛丽打破了玻璃杯。
4．“拟似”分裂句
如前所述，一般分裂句是不可以用简单陈述句的谓语动词作为中心成分的。如果要强调谓语动词，就得采用另外一种强调句型，这种句型又叫做“拟似”分裂句。如：
63）I gave her a book. What I did was (to) give her a look. 我所做的是给她一本书。
64）He took a plane to Beijing. What he did was (to) take a plane to Beijing. 他所做的是乘飞机去北京。
65）The student is going to write an article. What the student is going to do is(to) wri te an article.
这个学生要做的是写一篇文章。
“拟似”分裂句的主语通常是由what引导的名词性从句，从句的主动词通常是do的一定形式；这种分裂句的主语补语通常是不定式结构，可带to，也可不带to，它构成“拟似”分裂句的信息中心。
“拟似”分裂句还可采取另外一种形式，即“what-从句+be+名词词组”的形式，如：
66）What he gave her was a handbag. 他所给她的是个提包。
也可采取“名词词组+be+what-从句”的形式
67）A handbag was what he gave her. 提包就是他所给她的。
1．用先行词it改写下列句子：
（1）Possibly the Joneses will come to the party as well.
（2）Whether they will come or not doesn’t matter very much.
（3）He is quite likely to let you down.
（4）You seem to have taken a dislike to him.
（5）I happen to have had some nasty experiences in dealing with him.
（6）Getting the car on the boat was rather complicated.
（7）To be with you here this evening is a great pleasure.
（8）You were so kind to invite us.
（9）What you say does not matter in the least.
（10）How he came to have such a valuable painting is a mystery.
2．翻译下列句子：
（1）冬天，天色晚得早。
（2）问她没有用，她什么也不知道。
（3）从这儿到车站有两英里（路程）。
（4）你见过下冰雹吗？
（5）由你来决定该怎么办？
（6）据说他已去过美国两次了。
（7）可惜你错过了那次音乐会。
（8）看来，他很害怕。
（9）牛奶已经泼翻，哭也无用。（即：作无益的后悔无济于事。）
（10）几个月之后我们才又见面。
3．用强调句型改写下列句子。（划线部分为中心成分）
（1）She has been studying French only for three months.
（2）He has painted the windows green.
（3）John bought the car from Henry.
（4）I met Henry in New York.
（5）He didn’t come home until 11 o’clock last night.
翻译句子答案：
（1）It is getting dark earlier in winter.
（2）It is no use asking her because she didn’t know anything about it. （3）It’s two miles from here to the bus station.
（4）Have you seen it hailing?
（5）It is up to you decide what to do.
（6）It is said that he has been to the U.S.A. twice.
（7）It’s a pity that you’ve missed the concert.
（8）It seems that he is much afraid.
（9）It’s no use crying over spilt milk.
（10）It was several months before we met again.
高中英语语法：It的完整用法精讲 打印版
高中英语语法：It的完整用法精讲 it可用作人称代词、指示代词、先行词及引导词等。 1. 人称代词it，是第三人称单数中性，代表前文已提到过的一件事物。如： 1）That vase is valuable. It's more than 200 years old. 那个花瓶很珍贵，它有200多年的历史。 2）I love swimming. It keeps me fit. 我喜欢游泳，它能使我保持健康。 当说话者不清楚或无必要知道说话对象的性别时，也可用it来表示。如： 3）It's a lovely baby. Is it a boy or a girl? 宝宝真可爱，是男孩还是女孩？ it可用来指代团体。如： 4）The committee has met and it has rejected the proposal. 委员会已开过会，拒绝了这项建议。 it用以代替指示代词this, that.如： 5）--- What's this? --- It's a pen. —这是什么？—是一支钢笔。 6）--- Whose book is that? --- It's Mike's. —那是谁的书？—是迈克的。 2. 指示代词it，常用以指人。如： 7）Go and see who it is. 去看看是谁。 8）--- Who is making such a noise? —是谁发出这样的吵闹声？ --- It must be the children. —一定是孩子们。 3.虚义it无指代性，常用作没有具体意义的主语，出现于表示天气、气候、温度、时间、地点、距离等意义的句子中。如： 9）It is half past three now. 现在是三点半钟。 10）It is six miles to the nearest hospital from here. 这里离最近的医院也有六英里。 11）It was very cold; it snowed and grew dark. 天气很冷；天下着雪，渐渐地变黑了。 it也常用来表示一般的笼统的情况。如： 12）It's awful—I've got so much work I don't know where to start. 糟透了——我有这么多工作要做我不知从何开始。 13）How is it going with you? 你近况如何？ 14）Take it easy. 不要紧张。 it也常用于下列结构： 15）It looks as if the college is very small. 看起来这个学院很小。 16）It seems as though our plan will be perfect. 似乎我们的计划很完善。 17）It's my turn. 该轮到我了。 it也常用于某些习惯用语中作宾语，各该习惯用语有具体意义，但it并无具体意义。如：cab it 乘车catch it 受责，受罚come it 尽自己分内come it strong 做得过分walk it 步行make it 办成take it out of somebody 拿某人出气 4. 先行词it. it充当形式主语或形式宾语，本身无意义，只起一种先行引导的作用，先行词不重读。后面的真正主语或真正宾语通常是不定式结构、-ing分词结构或名词性从句。 （1）用作形式主语
英语it的用法小结
英语it的用法小结 江苏沛县湖西中学鹿俊先 221611 1．实义的it。 实义的it用来指代具体的内容。 1．1．指代上文提过的除人以外的生物或非生物，复数形式为they。 The earth is the planet that we live on. It is the fifth largest planet of the solar system. This car is not fast enough. It can only do 60 miles an hour. John is in the school football team. It was reorganized last year. “Where is the cat?”“It is in the garden.” “Where are the cats?”“They are in the garden.” 1．2．指代上文提过的性别不明或无须指明性别的小孩。 To feed a child without also educating it is a fault in the father. What’s matter with the baby? It has been crying. Her baby is due next month. She hopes it will be boy. 1．3．作主语指代上文提过的人，谓语用以指明该人的身份。 “Who is that at the door?”“It’s the postman.” The footsteps drew nearer and she saw from behind the curtain who her visitor was. And she opened the door to welcome her. It was Maria Cragg.（文中的主人已知客人是谁，所以在使用It之前就使用了her，但读者依然不明白，所以最后用It 作主语谓语指明该人的身份。） 1．4．作主语，指代谓语部分所说明的自然现象（如：风、雨、热、冷）、季节、时间、距离、环境等。 It was raining hard when he got off the train. Is it very cold in your country in December? It is high time (that) we had a rest. It was early spring / 1986 when we first met. It is six months since he lost his job. It won’t be long before we meet again. It is only two hours’ ride / eighty miles to Cleveland. It is very dark / pretty / crowded / noisy /dirty in the room. 1．5．指代上下文或一定语境所表明的情况、事件等。 “I’m trying to change my job.”“You’ll find it difficult.”（it指调换工作这件事。） “I’ll have to work all night through.”“It is awful.”（it指你彻夜工作这件事。）You’ll be in trouble before you know it.（it指你陷入困境这件事。。） English is very important, and we all know it.（it指英语的重要性。） When the factory closes, it will mean 500 redundancies.（it指工厂倒闭这件事。有些学者把此处及以下四个句子中的it解释为形式主语或形式宾语但却无法解释没有真正的主语/宾语何来形式主语/宾语。） I’d appreciate it if you could help me with the work.（it指你帮助我工作这件事。）
英语it的用法及练习
it的用法及练习 一、概述 在英语中，it的使用相当广泛，它既可用作代词，如人称代词（personal it）、指示代词（demonstrative it）及非人称代词（impersonal it）, 也可用作引导词（anticipatory it）和强调结构中的强调词（emphatic it） Someone is ringing the doorbell. Go and see who it is.有人在按门铃。去看看是谁。（人称代词）What’s this?这是什么？ It’s a book.这是一本书。（指示代词） What a long way it is from Beijing to London! 从北京到伦敦真远。（非人称代词） It's best to plant trees in spring because it's warmer.春天是植树的最佳时节，因为天气更暖和。（作引导词） It was I who met him in the park last week. 是我上星期在公园遇到他的。（强调结构中的强调词） 二、it作代词 1、用作人称代词（personal it） 代替前文提到过的事物，it作真实主语或宾语。 The frog is not a warm-blooded animal. It is a cold-blooded one.青蛙不是温血动物，它是冷血动物。My pen is missing. I can't find it anywhere. 我的笔丢了，我哪儿也找不到它了。 I won't be back tonight. Please tell my wife about it .我今晚不回来了，请你向我妻子说一声。 I was disappointed with the film. I had expected it to be much better. 我对这部电影很失望，我曾盼望它更好。 Tom's mother kept telling him that he should work harder, but it didn't help.汤姆的妈妈不停地告诉他要努力，但这没起作用。 2、用作指示代词（demonstrative it） 相当于this或that，it有时不特指某件东西，而代表前面已提到的或将会发生的某件事情。 -Who is knocking at the door? —谁在敲门？
高考英语It的用法(专项总结及训练)
It的用法（专项总结及训练） 一、人称代词 1，it的最基本用法是作代词，主要指刚提到的事物，以避免重复: ①They watched the train until it disappeared in the distance. 2.，也可以指动物或婴儿(未知性别的婴儿或孩子): ②Is this your dog？No, it isn’t. ③They got a baby and it was a ten-pounder 3.，也可指抽象事物或指抽象环境和情景: ③I hate it when people talk with a full mouth.． 二、.非人称代词 1.it有时并不指具体的东西而泛指天气、时间、日期、距离、价值、度量、温度、环境等： ⑴.指天气：It is a lovely day, isn’t it? ⑵.指时间: It was nearly midnight when she came back. ⑶.指日期:It is April First today. ⑷.指距离:It is some 3000 kilometers from Beijing to Guangzhou. ⑸.指价值:It is three dollars. ⑹.指温度:Today it is 30 degrees centigrade. 三、其他用法 1.在句子的主语不太明确时充当主语，表示谁在做某事： ①Who is it there? It's I (me/you/he.....). ②I thought it was Mary, but it was not she. ③Her face lighted when she saw who it was. 2.泛泛的指某件事：(有时泛指一般情况) ①It doesn’t matter. ②It is a shame, isn’t it? ③How is it going?(情况怎样) ④It says in the newspaper that...... 3.it用在一些词组中，it 没有特别的意思 The last train's gone. Come on, we'll foot it.(来，咱们步行吧。) 四、作形式主语，替代主语从句，动词不定式，或动名词短语： 1.作形式主语替代主语从句 ⑴It is clear ( obvious，true，possible，certain....) that 从句常译为＂┅清楚的（显然的，真的，可能的,肯定的．．．）＂ It is very clear that he’s round and tall like a tree. = That he’s round and tall like a tree is very clear. ⑵It is important ( necessary，right，strange，natural...) that 从句常译为┅是重要的(必要的,对的,奇怪的,自然的┅).that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去，建议记住该句型中的形容词。 ①It is important that we (should) learn English well.
it做形式主语用法大全含练习与答案
It作形式主语常见句型 动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有： 1. It + be + 形容词+主语从句，如： It is uncertain whether he can come to Jenny’s birthday party or not. 2. It + be + 名词词组+ 主语从句，这类名词有：a fact, a pity, a shame, an honour， a question等，如： It’s a pity that you missed the exciting football match. It remains a question whether he will come or not. 3. It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，如： It is reported that 16 people were killed in the earthquake. It is not decided who will give the operation to the patient. 4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，如： It seemed that he didn’t tell the truth. It happened that I was out when he called. 5. It + be + 形容词+ for sb.）+ 动词不定式 这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如： It’s necessary for the young to master two foreign language. It is unwise to give the children whatever they want. 这类形容词有：easy, difficult, hard, important, possible，wise 6. It + be + 形容词+ of sb. + 动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate 等。某人和这些形容词可以构成主系表结构。如： It’s very kind of you to help me with the work. =You are kind to help me. It seemed selfish of him not to share his dictionary with others. =He seemed selfish not to share his dictionary with others. 7. It + be +名词词组+ 动词不定式，如： It is not a good habit to stay up too late. 8. It + be + 名词或形容词+ 动名词，这类名词和形容词常常是：good, no good, no use, a waste of, useless, senseless等，如： It’s a waste of time talking to her any more. It is no use arguing about the matter with him. 9. It + take ( sb. )+ 时间（金钱）+ 动词不定式，如： It took the workers almost three years to finish building the dam. It will take a whole day to get to the top of the mountain on foot.
高中英语巩固练习 it的用法 2
巩固练习 Ⅰ. 把下面句子译成英语，注意it的用法。 1. 过了很久他才回来。 ________________________________________________________________________ 2. 我们两个月后才会再见面。 ________________________________________________________________________ 3. 我离开这所学校已经20年了 ________________________________________________________________________ 4. 直到她摘下墨镜我才认出她是个著名影星。 ________________________________________________________________________ 5. 是约600年前第一块带有表盘(face)和一个时针（hour hand）的钟表被制造出来的。________________________________________________________________________ 6. 昨天是他们打扫的教室。 ________________________________________________________________________ 7. 我是在大街上遇见她的父亲的。 ________________________________________________________________________ 8. 我们弄清楚了我们要在何时何地开会。 ________________________________________________________________________ 9. 据说所有的票都卖完了。 ________________________________________________________________________ 10. 我们真的该采取行动了。 ________________________________________________________________________ Ⅱ. 从方框中选出能够填入空白处的合适的连接词。 since, before, after, that, where, which 1. The weather turned out to be very good, _______ was more than we could expect. 2. It was not until ten o'clock ______ we got home last night． 3. Look at the building. It was the theatre _______ Lincoln was murdered. 4. Could it be in the restaurant in______ you had dinner with me yesterday_______ you left behind your keys and wallet? 5. It's years ______I painted this beautiful picture. 6. It will be years ______ I paint this beautiful picture. 7. It was years ______ I painted this beautiful picture. 8. It's for years ______ I have painted this beautiful picture. 9. It worried the mother a lot _______ her son drove so fast. 10. I think it important ______ you should attend the conference. Ⅲ. 单项选择。 1. I have always been honest and straightforward, and it doesn't matter ____ I am talking to. A．who is it B．who it is C．it is who D．it is whom 2. It was the ability to do the job _______ matters not where you e from or what you are.
高考英语 it的用法教案
it的用法： ⑴it用作人称代词：指代前面已经提到过的动物、事物、小孩或性别/身份不明的人，但应注意：指宠物时常用he/she，指大动物（马、大象等）可以用he/she；指祖国或家乡时，常用she. 注意句子：He failed in the examine，and it worried him. He failed in the examine. It worried him. He failed in the examine，which worried him. ⑵it用作非人称代词：常常用作句子的主语，可以指时间、距离、价格、长度、重量、日期、星期、月份、季节、气候等。 ⑶it用作形式主语或形式宾语：根据句子结构的需要，人们常用it作形式主语或宾语，而把真正的主语或宾语（不定式短语、动词-ing短语或名词性从句）放在句末。注意it作形式主语的常见结构有： ①It+ be + adj/n（for sb）to do sth. ②It +be + adj of sb to do sth. ③It +be + adj /n+ doing sth（一般限于名词fun，good，luck，joy，use，pleasure 或形容词foolish，wonderful，good，nice，interesting，useless，worth等作 表语时，才用it作形式主语，将真正的动名词主语后置） ④It +be + adj./n + that-clause. ⑤It +be+过去分词（如said，proved，known，believed，reported，thought，hoped， decided，announced, suggested，ordered，demanded，proposed，requested，advised 等）+that-clause.注意如果表语是划线部分的词，从句应该用虚拟语气。 ⑥It takes sb some time to do sth. ⑦It seems/looks as if…. ⑷it用在强调句型中： 强调句型“It is/was + 被强调部分 + 其他”的用法 ①这一句型可以强调除谓语、表语、定语和同位语以外的任何部分；如果被强调的部分是人，可以用who/that，如果被强调的部分是事物，只能用that。如：It was I who/that came here late this morning. It is a book that is on the desk. ②注意该句型不能强调让步状语从句；强调原因状语从句时，只能用because，不能用
英语中it的用法及练习
英语中it的用法及练习 一、概述 在英语中，it的使用相当广泛，它既可用作代词，如人称代词（personal it）、指示代词（demonstrative it）及非人称代词（impersonal it）, 也可用作引导词（anticipatory it）和强调结构中的强调词（emphatic it） Someone is ringing the doorbell. Go and see who it is.有人在按门铃。去看看是谁。（人称代词）What’s this?这是什么？ It’s a book.这是一本书。（指示代词） What a long way it is from Beijing to London! 从北京到伦敦真远。（非人称代词） It's best to plant trees in spring because it's warmer.春天是植树的最佳时节，因为天气更暖和。（作引导词） It was I who met him in the park last week. 是我上星期在公园遇到他的。（强调结构中的强调词） 二、it作代词 1、用作人称代词（personal it） 代替前文提到过的事物，it作真实主语或宾语。 The frog is not a warm-blooded animal. It is a cold-blooded one.青蛙不是温血动物，它是冷血动物。 My pen is missing. I can't find it anywhere. 我的笔丢了，我哪儿也找不到它了。 I won't be back tonight. Please tell my wife about it .我今晚不回来了，请你向我妻子说一声。 I was disappointed with the film. I had expected it to be much better. 我对这部电影很失望，我曾盼望它更好。 Tom's mother kept telling him that he should work harder, but it didn't help.汤姆的妈妈不停地告诉他要努力，但这没起作用。 2、用作指示代词（demonstrative it） 相当于this或that，it有时不特指某件东西，而代表前面已提到的或将会发生的某件事情。 -Who is knocking at the door? —谁在敲门？ -It's me. —是我。 I had a talk with the student. It was very helpful to her. 我和那个学生谈了次话，对她非常有帮助。 It happened during my stay in the United States. 事情发生在我在美国的时候。 -Whose exercise book is that? —谁的作业本？ -It's his . —是他的。 3、用作非人称代词（impersonal it） 代词it可用来指除人以外的一切生物和事物，无阴阳性之分。可指时间、距离、度量、价值、自然现象（天气、气体、阴暗等）。 -What's the time? —“几点了？” -It's half past ten. —“十点半”（指时间） It is late autumn now. 现在是深秋。（指时间） It is rather cold today, isn't it?今天很冷，是不是？（指天气） -How far is it from here to the station? —从这儿到车站有多远？ -It's about two kilometers. -大约两公里。（指距离） It is raining hard. 雨下得很大。（指自然现象） -What's the cost of the dictionary? 那本词典多少钱？
高中英语It的用法专项练习题
高中英语It的用法专项练习题一 1. Was it during the Second World War_____ he died? A.that B.while C.in which D.then 2. Is ____ necessary to complete the design before National Day? A.this B.that C.it D.he 3. I don't think ____ possible to master a foreign language without much memory work. A.this B.that C.its D.it 4. Does ______ matter if he can't finish the job on time? A.this B.that C.he D.it 5. It was not _____ she took off her glasses _____ I realized she was a famous film star. A.when, that B.until, that C.until, that D.when, then 6. I was disappointed with the film. I had expected ______ to be much better. A.that B.this C.one D.it 7. It was not until 1920 ______ regular radio broadcasts began. A.while B.which C.that D.since 8. ______is a fact that English is being accepted as an international language. A.There B.This C.That D.It 9. It was only when I reread this poems recently _____ I began to appreciate their beauty. A.until B.that C.then D.so
it的用法和练习(带答案)
重点代词it的用法和练习（含答案） (1)it用做人称代词的用法 it用作代词，意为“它”，既可以指人，也可以指物。it做人称代词，可以用来代替一个名词、短语、从句或句子，以避免他们在句中的重复。这是可以指提到过的，也可以指未提到的，在句中做主语、表语和宾语。 1)指事物，it可以知道除人以外的任何事物或动物。 I dropped my watch and it broke.我把手表掉在地上摔坏了。 2)指人，it主用用于指性别不明的婴儿或只听其声不见其人的人，如： Is it a boy or a girl?是男孩还是女孩？ There is a knock on the door. It must be the postman. “Listen. Someone is crying..”“Oh, it must be Mary.” 3）代替某些代词。 代词it可以用于代替指示代词this, that以及复合不定代词something, anything, nothing等，如：“What’s this?”“It’s a new machine” (2)it用作非人称代词的用法 1)it用作非人称代词主要用来指时间、距离、价值、天气、气温及温度等自然现象。如 It’s too late to go there now.现在去那已经太迟了。 It rained all day yesterday.昨天下了一整天雨。 2)用于某些句型。 It’s time for sth. 该做某事了。 It’s to do sth. 是时候该做某事了。 It’s time for sb to do sth. 某人该干某事了。 It’s (about/high) time +that--从句。某人该做某事了。（从句谓语用过去式，有时候用should+动词原形） It’s first(second)time +that--从句。某人第几次干某事。（从句谓语动词用现在完成时） It’s +时间段+since从句。自从…以来有一段时间了。 It’s +时间段+before 从句。过多长时间才… (3)it用作形式主语的用法。 1)当不定式、动名词、从句等复杂成分做句子主语时，为保持句子的平衡，通常把真正的主语放 在句末，而句首使用形式主语it。如 It’s very important to remember this. It’s hard work climbing mountains. It’s unknown when he will come. 2)it用作形式主语的重要句型。 ①It+be+adj.+for(of)sb to do sth. 某人做某事… It is hard for him to make up his mind.他很难下定决心。 It was foolish of her to say such a thing.她说那样的话，太愚蠢了。 提示：此句型中的介词of和for的区别是：of用于指某人的性格，属性，特征等。介词for表示对象，意为“对…来说”。
高中英语语法知识之It的用法总结
高考英语语法知识之It 的用法总结 1．It is + 被强调部分+ that ... 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，状语。强调的主语如果是人，that可以由who换用。 如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father. 2．It was not until + 被强调部分+ that ... 该句型也是强调句型。主要用于强凋时间状语，译成汉语＂直到．．．才．．．＂，可以说是not ... until ... 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star. = I didn’t realize she was a famous film star until she took off her dark glasses. 3．It is clear ( obvious, true, possible,certain....) that ..... 该句型中it 是形式主语，真正的主语是that 引导的主语从句，常译为＂清楚（显然，真的，肯定．．．）＂是主语从句最常见的一种结构。 It is very clear that he’s round and tall like a tree.= That he’s round and tall like a tree is very clear. 4. It is important ( necessary, right, strange, natural...) that ... 由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。 It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned....) that ... 该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为＂据说（据报道，据悉．．．）＂。It is said that he has come to Beijing. 6. It is suggested ( ordered ... ) that ... 主句中的过去分词是表示请求，建议，命令等词时，that后的从句要用虚拟语气（should + 动词原形），should 可以省。常译为＂据建议；有命令．． It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours. 7. It is a pity ( a shame ... ) that ... 该句型中，that后的从句一般用虚拟语气（should + 动词原形），should可省去．表示出乎意料，常译为＂竟然＂。没有这种意义时，则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. It is a pity that he is ill. 8. It is time ( about time ,high time ) that ... 该句型中that 后的从句应该用虚拟语气，值得注意的是①常用过去时态表示虚拟．②有时也用should + 动词原形，should 不能省。常译为＂是（正是）．．．的时侯．．．＂。 It is time that children should go to bed. = It is time that children went to bed. 9. It is the first ( second ... ) time that ... 该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人第几次做某事了＂。 It is the first time I have been here. = This is the first time I have been here. 10 It is the +形容词最高级+ 名词+ that + ….. 该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人做过的最…的事情＂。 This is the best film that I have ever seen . That was the worst song that he had heard . 11. It is .... since ...
it用法归纳(高中英语)
“it” 两项重点用法Mar 4. 2011 这两项重点用法指的是强调句和it做形式成分。 一.强调句: 一）陈述句： It + is / was + 被强调部分+ that / who … ( 强调人时可用who ) I met Tom in the street yesterday. 针对各个划线部分变强调句： 1) It was I that met Tom in the street yesterday. 2) It was Tom that I met in the street yesterday. 3) It was in the street that I met Tom yesterday. 4) It was yesterday that I met Tom in the street. 二）一般疑问句： 1) Was it I that met Tom in the street yesterday? 2) Was it Tom that I met in the street yesterday? 3) Was it in the street that I met Tom yesterday? 4) Was it yesterday that I met Tom in the street? 三）特殊疑问句： 1) Who was it that met Tom in the street yesterday? 2) Who was it that I met in the street yesterday? 3) Where was it that I met Tom yesterday? 4) When was it that I met Tom in the street? 四）特殊疑问句作宾语从句： I forgot… 1) I forgot who it was that met Tom in the street yesterday. 2) I forgot who it was that I met in the street yesterday. 3) I forgot where it was that I met Tom yesterday. 4) I forgot when it was that I met Tom in the street. 结论：特殊疑问句作宾语从句时，主谓词序正常。 五）判断强调句的方法： “It is / was … that…” 这个框架拿掉以后，句子仍然成立。 高考题： I just wonder ___ that makes him so excited. A. why it does B. what he does C. how it is D. what it is （D ） 难点： I did not go to bed until midnight. It was not until midnight that I went to bed. 二. It 做形式成分：形式宾语和形式主语